1 Feline stomatitis is a severe, painful inflammation of a catâs mouth and gums. 2  Dental disease, certain viruses, and some other inflammatory conditions can cause feline stomatitis.  The long-term outcome can vary. Many cats require long-term treatment to control the condition.
Vaccine Adverse Event Reporting System. The Vaccine Adverse Event Reporting System (VAERS) is a United States program for vaccine safety, co-managed by the U.S. Centers for Disease Control and Prevention (CDC) and the Food and Drug Administration (FDA).
A vaccine reaction is any injury or condition that occurs as a result of a vaccination that has been given to protect against disease. Serious reactions to vaccines are very rare, and vaccination is far less risky than the catching the disease it prevents. Reference from A.D.A.M.